Nov 21 2012 So, the winter is coming with this mysterious guy. Who is he?

He is wearing a coat with skulls on his shoulder..a two-handed sword on his back..his body appearence is the same as Demon Slayer (hair, eyes color, skin color)..black nails... On his coat's sleeves there is a little bat-form symbol...

For me, he is related to Demon Slayer...maybe is family...maybe not...but this guy looks like a Boss, not a playable class...

So, what YOU guys think about it?